41# 42# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 43# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 44# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 45# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 46# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 47# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 48# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 52# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53# 54# Authors: Gabe Black 55 56microcode = ''' 57 58# All the memory versions need to use LOCK, regardless of if it was set 59 60def macroop XCHG_R_R 61{ 62 # Use the xor trick instead of moves to reduce register pressure. 63 # This probably doesn't make much of a difference, but it's easy. 64 xor reg, reg, regm 65 xor regm, regm, reg 66 xor reg, reg, regm 67}; 68 69def macroop XCHG_R_M 70{ 71 ldst t1, seg, sib, disp 72 st reg, seg, sib, disp 73 mov reg, reg, t1 74}; 75 76def macroop XCHG_R_P 77{ 78 rdip t7 79 ldst t1, seg, riprel, disp 80 st reg, seg, riprel, disp 81 mov reg, reg, t1 82}; 83 84def macroop XCHG_M_R 85{ 86 ldst t1, seg, sib, disp 87 st reg, seg, sib, disp 88 mov reg, reg, t1 89}; 90 91def macroop XCHG_P_R 92{ 93 rdip t7 94 ldst t1, seg, riprel, disp 95 st reg, seg, riprel, disp 96 mov reg, reg, t1 97}; 98 99def macroop XCHG_LOCKED_M_R 100{ 101 ldstl t1, seg, sib, disp 102 stul reg, seg, sib, disp 103 mov reg, reg, t1 104}; 105 106def macroop XCHG_LOCKED_P_R 107{ 108 rdip t7 109 ldstl t1, seg, riprel, disp 110 stul reg, seg, riprel, disp 111 mov reg, reg, t1 112}; 113'''
| 23# 24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35# 36# Authors: Gabe Black 37 38microcode = ''' 39 40# All the memory versions need to use LOCK, regardless of if it was set 41 42def macroop XCHG_R_R 43{ 44 # Use the xor trick instead of moves to reduce register pressure. 45 # This probably doesn't make much of a difference, but it's easy. 46 xor reg, reg, regm 47 xor regm, regm, reg 48 xor reg, reg, regm 49}; 50 51def macroop XCHG_R_M 52{ 53 ldst t1, seg, sib, disp 54 st reg, seg, sib, disp 55 mov reg, reg, t1 56}; 57 58def macroop XCHG_R_P 59{ 60 rdip t7 61 ldst t1, seg, riprel, disp 62 st reg, seg, riprel, disp 63 mov reg, reg, t1 64}; 65 66def macroop XCHG_M_R 67{ 68 ldst t1, seg, sib, disp 69 st reg, seg, sib, disp 70 mov reg, reg, t1 71}; 72 73def macroop XCHG_P_R 74{ 75 rdip t7 76 ldst t1, seg, riprel, disp 77 st reg, seg, riprel, disp 78 mov reg, reg, t1 79}; 80 81def macroop XCHG_LOCKED_M_R 82{ 83 ldstl t1, seg, sib, disp 84 stul reg, seg, sib, disp 85 mov reg, reg, t1 86}; 87 88def macroop XCHG_LOCKED_P_R 89{ 90 rdip t7 91 ldstl t1, seg, riprel, disp 92 stul reg, seg, riprel, disp 93 mov reg, reg, t1 94}; 95'''
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